Cheap Frontier Airlines flights Boston (BOS) to Chicago (ORD)

Cheap Frontier Airlines flights Boston (BOS) to Chicago (ORD)

Prices were available within the past 7 days and start at for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 25 - Thu, Jan 1

BOS

Boston

ORD

Chicago

$208 Roundtrip, found 14 hours ago

$208

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Dec 25 from Boston to Chicago, returning Thu, Jan 1, priced at $208 found 14 hours ago

Mon, Dec 29 - Thu, Jan 1

BOS

Boston

ORD

Chicago

$238 Roundtrip, found 14 hours ago

$238

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Mon, Dec 29 from Boston to Chicago, returning Thu, Jan 1, priced at $238 found 14 hours ago

Wed, Dec 24 - Thu, Jan 1

BOS

Boston

ORD

Chicago

$288 Roundtrip, found 14 hours ago

$288

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Wed, Dec 24 from Boston to Chicago, returning Thu, Jan 1, priced at $288 found 14 hours ago

Thu, Dec 25 - Mon, Dec 29

BOS

Boston

ORD

Chicago

$292 Roundtrip, found 14 hours ago

$292

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Dec 25 from Boston to Chicago, returning Mon, Dec 29, priced at $292 found 14 hours ago

Sun, Dec 28 - Mon, Dec 29

BOS

Boston

ORD

Chicago

$322 Roundtrip, found 14 hours ago

$322

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Sun, Dec 28 from Boston to Chicago, returning Mon, Dec 29, priced at $322 found 14 hours ago

Wed, Dec 24 - Mon, Dec 29

BOS

Boston

ORD

Chicago

$372 Roundtrip, found 14 hours ago

$372

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Wed, Dec 24 from Boston to Chicago, returning Mon, Dec 29, priced at $372 found 14 hours ago